*{
    padding: 0px;;
    margin: 0px;
    box-sizing: border-box;
}
body{
    font-family: '楷体',sans-serif;
    line-height: 1.7;
    color:black;
    height: 95vh;
    background-image:url(../Picture/indexbackground.jpg);
}
.header{
    height: 50%;
    width: 100%;
    position: relative;
}
.text-box{
    position:absolute;
    top:50%;
    left:50%;
    text-align: center;
    transform: translate(-50%,-60%);
}
.head-major{
    color:#fff;
    backface-visibility: hidden;
}
.header-major-1{
    display: block;
    font-weight: 400;
    font-size: 80px;
    letter-spacing: 40px;
    animation-name:moveInleft;
    animation-duration: 1.5s;
    animation-delay: 0.5s;
}
.header-major-2{
    display: block;
    font-weight: 400;
    font-size: 40px;
    letter-spacing: 14.5px;
    animation-name:moveInright;
    animation-duration: 1.5s;
    animation-delay: 0.5s;
    transform: translateX(-14px);
}
@keyframes moveInleft{
    0%{
        opacity: 0;
        transform: translateX(-100px);
    }
    85%{
        transform: translateX(10px);
    }
    100%{
        opacity: 1;
    }

}
@keyframes moveInright{
    0%{
        opacity: 0;
        transform: translateX(100px);
    }
    85%{
        transform: translateX(-10px);
    }
    100%{
        opacity: 1;
    }
}
.btn:link,   
.btn:visited{
    text-decoration: none;
    display: inline-block;
    border-radius: 100px;
    padding: 10px 40px;
    transform: translateX(-17px);
    transition: all.0.5s;
}
.btn:hover{
    transform: translateY(-3px);
    box-shadow:5px 5px 10px rgb(0,0,0,.2);
}
.btn:active{
    transform: translateY(-1px);
}
.btn1{
    background:linear-gradient(to right,RGB(213,235,225),RGB(177,213,200),RGB(153,188,172),RGB(128,164,146));
    text-align: center;
}
.small{
    width:90%;
    height:50%;
    transform: translateX(60px);
    display: flex;
}
.box{
    line-height: 25px;
    flex: 1;
    overflow: hidden;
    transition: .5s;
    margin:0 45px;
    box-shadow: 10px 10px 20px,rgb(255, 255, 255);
    border-radius: 20px;
    border: 1px solid white;
    /*background-image: linear-gradient(to right,#44362F,#002FA7);*/
    background-color: rgba(13, 164, 219, 0.377);
}
a>img{
    width:100%;
    height: 80%;
    object-fit: cover;
    transition: .5s;
}
.box>img{
    width:100%;
    height: 80%;
    object-fit: cover;
    transition: .5s;
}
.box>span{
    font-size: 25px;
    font-family: '楷体';
    font-weight: 200;
    color: white;
    justify-content: center;
    height:20%
}
.box a{
    text-decoration: none;
    font-size: 25px;
    font-family: '楷体';
    font-weight: 200;
    color:  white;
    justify-content: center;
    height:20%
}
.box:hover{
    flex-basis: 40%;
}
.box:hover>span{
    width: 100%;
    height: 100%;
}